//  [typescript]
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
exports.default = solve;
// =================================================
// ABC114B
// =================================================

// solver
function solve(lines) {
  const { s } = parseLines(lines);

  const {
    Subject,
    from,
    operators: { min, bufferCount }
  } = loadRxjs();

  const subject$ = new Subject();
  const promise = subject$.pipe(min()).toPromise();

  from(s)
    .pipe(bufferCount(3, 1))
    .subscribe({
      next: nums => {
        const absValue = Math.abs(753 - +nums.join(''));
        subject$.next(absValue);
      },
      complete: () => subject$.complete()
    });

  return promise.then(v => v.toString());
}

// helpers
function parseLines(lines) {
  const s = lines[0].split('').map(s => +s);
  const params = { s };
  debug(params);
  return params;
}

// general helpers
function debug(message, ...optionalParams) {
  if (!!process.env.LOCAL_DEBUG) console.log(message, ...optionalParams);
}

// main
function main(lines) {
  const ans = solve(lines);
  if (ans instanceof Promise) {
    ans.then(console.log).catch(console.error);
  } else {
    console.log(ans);
  }
}

// reader
if (!process.env.LOCAL_DEBUG) {
  const { stdin: input, stdout: output } = process;
  input.resume().setEncoding('utf8');
  const lines = [];
  require('readline')
    .createInterface({ input, output })
    .on('line', line => lines.push(line))
    .on('close', () => main(lines));
}

// external modules
const getExternalModuleSafe = externalModule => {
  for (let k in this) {
    if (['lodash', 'rxjs', 'simpleStatistics'].indexOf(k) === -1) delete this[k];
  }
  return externalModule;
};
const loadLodash = () => {
  if (!this.lodash) {
    // prettier-ignore
    // {{LODASH_SOURCE}}
    // @ts-ignore
    this.lodash = getExternalModuleSafe(!process.env.LOCAL_DEBUG ? Object.assign({}, this._) : require('lodash'));
  }
  return this.lodash;
};
const loadRxjs = () => {
  if (!this.rxjs) {
    // prettier-ignore
    /**  @license  Apache License 2.0 https://github.com/ReactiveX/RxJS/blob/master/LICENSE.txt **/ /**  @license  Apache License 2.0 https://github.com/ReactiveX/RxJS/blob/master/LICENSE.txt **/ /* *****************************************************************************   Copyright (c) Microsoft Corporation. All rights reserved.   Licensed under the Apache License, Version 2.0 (the "License"); you may not use   this file except in compliance with the License. You may obtain a copy of the   License at http://www.apache.org/licenses/LICENSE-2.0   THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY   KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED   WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,   MERCHANTABLITY OR NON-INFRINGEMENT.   See the Apache Version 2.0 License for specific language governing permissions   and limitations under the License. *****************************************************************************/ (function(k,h){"object"===typeof exports&&"undefined"!==typeof module?h(exports):"function"===typeof define&&define.amd?define("rxjs",["exports"],h):h(k.rxjs={})})(this,function(k){function h(c,a){function b(){this.constructor=c}Mb(c,a);c.prototype=null===a?Object.create(a):(b.prototype=a.prototype,new b)}function Q(c){return"function"===typeof c}function R(c){setTimeout(function(){throw c;},0)}function sa(c){return null!==c&&"object"===typeof c}function Ma(c){Error.call(this);this.message=c?c.length+ " errors occurred during unsubscription:\n"+c.map(function(a,b){return b+1+") "+a.toString()}).join("\n "):"";this.name="UnsubscriptionError";this.errors=c;return this}function Na(c){return c.reduce(function(a,b){return a.concat(b instanceof Y?b.errors:b)},[])}function ta(c){for(;c;){var a=c.destination,b=c.isStopped;if(c.closed||b)return!1;c=a&&a instanceof m?a:null}return!0}function D(){}function ua(){for(var c=[],a=0;a<arguments.length;a++)c[a]=arguments[a];return Oa(c)}function Oa(c){return c? 1===c.length?c[0]:function(a){return c.reduce(function(b,a){return a(b)},a)}:D}function Pa(c){c||(c=C.Promise||Promise);if(!c)throw Error("no Promise impl found");return c}function E(){Error.call(this);this.message="object unsubscribed";this.name="ObjectUnsubscribedError";return this}function va(){return function(c){return c.lift(new Nb(c))}}function S(c){return c?Ob(c):T}function Ob(c){return new n(function(a){return c.schedule(function(){return a.complete()})})}function A(c){return c&&"function"=== typeof c.schedule}function wa(c,a){return new n(function(b){var d=new t,e=0;d.add(a.schedule(function(){e===c.length?b.complete():(b.next(c[e++]),b.closed||d.add(this.schedule()))}));return d})}function Z(c,a){return a?wa(c,a):new n(Qa(c))}function ha(){for(var c=[],a=0;a<arguments.length;a++)c[a]=arguments[a];a=c[c.length-1];return A(a)?(c.pop(),wa(c,a)):Z(c)}function xa(c,a){return a?new n(function(b){return a.schedule(Pb,0,{error:c,subscriber:b})}):new n(function(b){return b.error(c)})}function Pb(c){c.subscriber.error(c.error)} function J(c){return c}function K(){Error.call(this);this.message="argument out of range";this.name="ArgumentOutOfRangeError";return this}function Ra(){Error.call(this);this.message="no elements in sequence";this.name="EmptyError";return this}function ya(){Error.call(this);this.message="Timeout has occurred";this.name="TimeoutError";return this}function B(c,a){return function(b){if("function"!==typeof c)throw new TypeError("argument is not a function. 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b.scheduler=d;return b}h(a,c);a.prototype.scheduleMessages=function(a){for(var b=this.messages.length,c=0;c<b;c++){var f=this.messages[c];a.add(this.scheduler.schedule(function(a){a.message.notification.observe(a.subscriber)},f.frame,{message:f,subscriber:a}))}};return a}(n);pb(Ka,[Hb]);var Ib=function(c){function a(a,d){var b=c.call(this)||this;b.messages=a;b.subscriptions=[];b.scheduler=d;return b}h(a,c);a.prototype._subscribe=function(a){var b=this,e=b.logSubscribedFrame(),f=new t;f.add(new t(function(){b.logUnsubscribedFrame(e)})); f.add(c.prototype._subscribe.call(this,a));return f};a.prototype.setup=function(){for(var a=this,c=a.messages.length,e=0;e<c;e++)(function(){var b=a.messages[e];a.scheduler.schedule(function(){b.notification.observe(a)},b.frame)})()};return a}(v);pb(Ib,[Hb]);var xf=function(c){function a(a){var b=c.call(this,Ia,750)||this;b.assertDeepEqual=a;b.hotObservables=[];b.coldObservables=[];b.flushTests=[];b.runMode=!1;return b}h(a,c);a.prototype.createTime=function(b){b=b.indexOf("|");if(-1===b)throw Error('marble diagram for time should have a completion marker "|"'); 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var m=this.runMode;return{toBe:function(b,c,d){g.ready=!0;g.expected=a.parseMarbles(b,c,d,!0,m)}}};a.prototype.expectSubscriptions=function(b){var c={actual:b,ready:!1};this.flushTests.push(c);var e=this.runMode;return{toBe:function(b){b="string"===typeof b?[b]:b;c.ready=!0;c.expected=b.map(function(b){return a.parseMarblesAsSubscriptions(b,e)})}}};a.prototype.flush=function(){for(var a=this,d=this.hotObservables;0<d.length;)d.shift().setup();c.prototype.flush.call(this);this.flushTests=this.flushTests.filter(function(b){return b.ready? 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There can only be one.");k=-1<g?g:m;break;default:if(c&&l.match(/^[0-9]$/)&&(0===d||" "===a[d-1])){var r=a.slice(d).match(/^([0-9]+(?:\.[0-9]+)?)(ms|s|m) /);if(r){d+=r[0].length-1;var l=parseFloat(r[1]),u=void 0;switch(r[2]){case "ms":u=l;break;case "s":u=1E3*l;break;case "m":u=6E4*l}f(u/n.frameTimeFactor);break}}throw Error("there can only be '^' and '!' markers in a subscription marble diagram. 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a.prototype.setupEvents=function(a,c){function b(a){var c=b.subscriber,d=b.progressSubscriber,e=b.request;d&&d.error(a);var f;try{f=new Kb(this,e)}catch(La){f=La}c.error(f)}function d(a){}function g(a){var b=g.subscriber,c=g.progressSubscriber,d=g.request;if(4===this.readyState){var e=1223===this.status?204:this.status,f="text"===this.responseType?this.response||this.responseText:this.response;0===e&&(e=f?200:0);if(400>e)c&&c.complete(),b.next(a),b.complete();else{c&&c.error(a);a=void 0;try{a=new ra("ajax error "+ e,this,d)}catch(wf){a=wf}b.error(a)}}}var h=c.progressSubscriber;a.ontimeout=b;b.request=c;b.subscriber=this;b.progressSubscriber=h;if(a.upload&&"withCredentials"in a){if(h){var k;k=function(a){k.progressSubscriber.next(a)};z.XDomainRequest?a.onprogress=k:a.upload.onprogress=k;k.progressSubscriber=h}var m;m=function(a){var b=m.progressSubscriber,c=m.subscriber,d=m.request;b&&b.error(a);var e;try{e=new ra("ajax error",this,d)}catch(La){e=La}c.error(e)};a.onerror=m;m.request=c;m.subscriber=this;m.progressSubscriber= h}a.onreadystatechange=d;d.subscriber=this;d.progressSubscriber=h;d.request=c;a.onload=g;g.subscriber=this;g.progressSubscriber=h;g.request=c};a.prototype.unsubscribe=function(){var a=this.xhr;!this.done&&a&&4!==a.readyState&&"function"===typeof a.abort&&a.abort();c.prototype.unsubscribe.call(this)};return a}(m),Jb=function(){return function(c,a,b){this.originalEvent=c;this.xhr=a;this.request=b;this.status=a.status;this.responseType=a.responseType||b.responseType;this.response=rb(this.responseType, a)}}();qb.prototype=Object.create(Error.prototype);var ra=qb,Kb=function(c,a){ra.call(this,"ajax timeout",c,a);this.name="AjaxTimeoutError";return this},Cf=Object.freeze({ajax:O.create,AjaxResponse:Jb,AjaxError:ra,AjaxTimeoutError:Kb}),Df={url:"",deserializer:function(c){return JSON.parse(c.data)},serializer:function(c){return JSON.stringify(c)}},Lb=function(c){function a(a,d){var b=c.call(this)||this;if(a instanceof n)b.destination=d,b.source=a;else{d=b._config=Mc({},Df);b._output=new v;if("string"=== typeof a)d.url=a;else for(var f in a)a.hasOwnProperty(f)&&(d[f]=a[f]);if(!d.WebSocketCtor&&WebSocket)d.WebSocketCtor=WebSocket;else if(!d.WebSocketCtor)throw Error("no WebSocket constructor can be found");b.destination=new X}return b}h(a,c);a.prototype.lift=function(b){var c=new a(this._config,this.destination);c.operator=b;c.source=this;return c};a.prototype._resetState=function(){this._socket=null;this.source||(this.destination=new X);this._output=new v};a.prototype.multiplex=function(a,c,e){var b= this;return new n(function(d){try{b.next(a())}catch(u){d.error(u)}var f=b.subscribe(function(a){try{e(a)&&d.next(a)}catch(L){d.error(L)}},function(a){return d.error(a)},function(){return d.complete()});return function(){try{b.next(c())}catch(u){d.error(u)}f.unsubscribe()}})};a.prototype._connectSocket=function(){var a=this,c=this._config,e=c.WebSocketCtor,f=c.protocol,g=c.url,c=c.binaryType,h=this._output,k=null;try{this._socket=k=f?new e(g,f):new e(g),c&&(this._socket.binaryType=c)}catch(r){h.error(r); 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try{h=a(d)}catch(r){c.error(r);break}if(!h){c.complete();break}}h=void 0;try{h=f(d)}catch(r){c.error(r);break}c.next(h);if(c.closed)break;try{d=b(d)}catch(r){c.error(r);break}}while(1)})};k.iif=function(c,a,b){void 0===a&&(a=T);void 0===b&&(b=T);return Aa(function(){return c()?a:b})};k.interval=function(c,a){void 0===c&&(c=0);void 0===a&&(a=y);if(!W(c)||0>c)c=0;a&&"function"===typeof a.schedule||(a=y);return new n(function(b){b.add(a.schedule(cc,c,{subscriber:b,counter:0,period:c}));return b})};k.merge= bb;k.never=function(){return Cb};k.of=ha;k.onErrorResumeNext=Ba;k.pairs=function(c,a){return a?new n(function(b){var d=Object.keys(c),e=new t;e.add(a.schedule(dc,0,{keys:d,index:0,subscriber:b,subscription:e,obj:c}));return e}):new n(function(a){for(var b=Object.keys(c),e=0;e<b.length&&!a.closed;e++){var f=b[e];c.hasOwnProperty(f)&&a.next([f,c[f]])}a.complete()})};k.partition=function(c,a,b){return[I(a,b)(new n(ia(c))),I(cb(a,b))(new n(ia(c)))]};k.race=db;k.range=function(c,a,b){void 0===c&&(c=0); return new n(function(d){void 0===a&&(a=c,c=0);var e=0,f=c;if(b)return b.schedule(gc,0,{index:e,count:a,start:c,subscriber:d});do{if(e++>=a){d.complete();break}d.next(f++);if(d.closed)break}while(1)})};k.throwError=xa;k.timer=eb;k.using=function(c,a){return new n(function(b){var d;try{d=c()}catch(g){b.error(g);return}var e;try{e=a(d)}catch(g){b.error(g);return}var f=(e?G(e):T).subscribe(b);return function(){f.unsubscribe();d&&d.unsubscribe()}})};k.zip=fb;k.scheduled=Wa;k.EMPTY=T;k.NEVER=Cb;k.config= C;Object.defineProperty(k,"__esModule",{value:!0})}); //# sourceMappingURL=rxjs.umd.min.js.map
    // @ts-ignore
    this.rxjs = getExternalModuleSafe(
      !process.env.LOCAL_DEBUG
        ? Object.assign({}, this)
        : Object.assign(require('rxjs'), { operators: require('rxjs/operators') })
    );
  }
  return this.rxjs;
};
const loadSimpleStatistics = () => {
  if (!this.simpleStatistics) {
    // prettier-ignore
    // {{SIMPLE_STATISTICS_SOURCE}}
    // @ts-ignore
    this.simpleStatistics = getExternalModuleSafe(!process.env.LOCAL_DEBUG ? Object.assign({}, this) : require('simple-statistics'));
  }
  return this.simpleStatistics;
};