1SEOS 2SCOMMENT 3SLABEL 4SUNKNOWN 5SHOLLERITH 6SICON 7SRCON 8SDCON 9SBITCON 10SOCTCON 11SHEXCON 12STRUE 13SFALSE 14SNAME 15SNAMEEQ 16SFIELD 17SSCALE 18SINCLUDE 19SLET 20SASSIGN 21SAUTOMATIC 22SBACKSPACE 23SBLOCK 24SCALL 25SCHARACTER 26SCLOSE 27SCOMMON 28SCOMPLEX 29SCONTINUE 30SDATA 31SDCOMPLEX 32SDIMENSION 33SDO 34SDOUBLE 35SELSE 36SELSEIF 37SEND 38SENDFILE 39SENDIF 40SENTRY 41SEQUIV 42SEXTERNAL 43SFORMAT 44SFUNCTION 45SGOTO 46SASGOTO 47SCOMPGOTO 48SARITHIF 49SLOGIF 50SIMPLICIT 51SINQUIRE 52SINTEGER 53SINTRINSIC 54SLOGICAL 55SNAMELIST 56SOPEN 57SPARAM 58SPAUSE 59SPRINT 60SPROGRAM 61SPUNCH 62SREAD 63SREAL 64SRETURN 65SREWIND 66SSAVE 67SSTATIC 68SSTOP 69SSUBROUTINE 70STHEN 71STO 72SUNDEFINED 73SWRITE 74SLPAR 75SRPAR 76SEQUALS 77SCOLON 78SCOMMA 79SCURRENCY 80SPLUS 81SMINUS 82SSTAR 83SSLASH 84SPOWER 85SCONCAT 86SAND 87SOR 88SNEQV 89SEQV 90SNOT 91SEQ 92SLT 93SGT 94SLE 95SGE 96SNE 97SENDDO 98SWHILE 99SSLASHD 100SBYTE 101